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【判断题】
消息由信源产生,是通信系统要传送的具体内容,如一段语音、文字、数据和一幅图像等。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】The star of David, an important religious symbol, was transformed a badge of shame by Nazis.
A.
in; a
B.
into; a
C.
into; the
D.
in; the
【简答题】根据中国标准化法，中国标准分为国家标准、_______、______和企业标准4类。
【单选题】Where does Annemarie keep Ellen's Star of David necklace until the end of the war?
A.
She wears it.
B.
In the closet.
C.
In the pocket of Lise's dress.
D.
In her jewelry box.
【简答题】吸附法制备固定化酶的原理及特点 ?
【多选题】Which of the following are NOT true about David Beckham?
A.
never married
B.
professionally unsuccessful
C.
English football player
D.
international soccer star
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